Cream separator



. W,I G. COTE. CREAM SEPARATOHZ APPLICATION min mm. 18. 192|.

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CREAM SEPARATUB.

` iippiieaiion inea January 15,1921; serial emissies.,

TQUZZ wko/m, 'it may concern:

l Be `it liiioivn thit l, VViiiLiiiir loo'rn, e. subject y ein, residinget lilyribbing,` lllestern ilu tloininoniveziltli certain `new lrefiinSeparatore, of :i sijiecificfitioii. l rlhis invention relates to`creziiii sep end its object is to `obtziiii certziiiii. ec

p Groiinoii of the King of Greet Brit strelizi,

of insti-elia, `have invented :ind usei'ul ln'iprovements in which the`iiolloiving is erators onoinic `:ind otheredvzinteges in the `Workingsind use oli' said separators. 4Une of the chiel advantages oil thisinvention Consists iiizi perfect uniformity or regular and even denconstant ratio of creeni et all speeds sepzirzitor, that is, either etzi sity or oit the low, medium, or

ll'tiither et ell speeds andce-pacities all Weste ot cream is evoidedand the skimmed iiiilli is d scherged iii un impoverished condi- "tionand destitute `veriation type, of

pzicity olf the separator Which nitty ployed :ind

of creiiin irrespective oit speed' or ot Working cabe einn said Workingcapacity` may be increased or decreased as desired by the operator.

` d My invention zitteiiis 'this ,result by aiutoinzitically governingthe feed supply the sinne in mutuel ugr oi the :siictionel ineens :indzuftion end element with the speed of the separator, While the inventionalso includes "niezins whereby the ere-:im is :iereted en l cooled rind``all animal and other objectionable odors, mints und lievors are removedend destroyed. y ln this iii-` iguivted lfroin gi'evity feed :ind .lthereby at e true :ind constantratio ol: seijiaretion siietioinil de litli at in respect ol the `leed el the niilli` A o''v tliie speedol'tliie separator. with suit that the slniniiied milk is devoid cieenioi' :fatty metter While the creziiii is :il

wai.. s ot :i standardconsisteney. y t @ne o'l i' invention.

les in 'the use oil ai lien le liie''i structurel t'eatui'es oit the` oililie which is either integrally oi" bly iitteclied 'to the rotatingboivlo'l` f.tion o t seid iiii ion is established action with 'thevarying This suc-tional ect-ion directly fend posi i tivelyregulat undcontrols the wfeed supply.

oi' the millr to the bowl vvithouttlie eid ol' valves or other operativemembers. l 1

rlhe above mentioned and other structurel leetures end :ulvziiiite-geswill now be eiiplfiined with the :iid oi' the ettziclied. di'ztvvvzition showing one embodiment oi" my in` ventioii :is applied to-creeinseparators iii ivliic-lithe 'Hoet chamber is located. directif above therotary bowl. i i

Fig. 2 is :isec'tional elevation oili :i modifi cation haii/ing thefloat chamber located at one side oit the rotary bowl.

` Fig.` 3 is e detail view olf the combined :iiriind luiisepareted milkdischarge passage tekenen section line 9-9`ot Fig. l.

Fig. l is e view similar to Fig. *l of av modified form.

\ Fig. 5 is :i vertical trfiilsverse section through the creein spout. y

v F ig. 6 is a; :fragmentary View oil? the cream spout showing` thecorrugations therein.

Fig. 7 is transverse section oil a further modilication ot' the creamspout. i

ligure 8 is zi 'fragmentary elevation showing n. slightly differentconstruction of the means i'oi zilliording ziplissee-e beneath the lowered ige of the bell shaped member.

le'ferringto tliestriictuie ulioivn in said Fig. l the inilli reservoirc is mede with zi short upstending tube al having inlet ports e2 for theadmission oil the milk et ziloW level. This tube el iscloszible by meansoi ii tubuliir turn plug b also having holes b1 adapted to register withthe inlet ports e2` of the tube al ivliich letter.downwardly pro-` jectses shown in order to ineke closable con# tarot with the 'top of the'lozit o.

`The float is slio'ivn inthe closed position and is: marde With :t shortupstandingr `stem ol which extends into said plug The float e is madewith :i central and" circular cavity o* which ects as ziirziir" chamberand is adapted to receive e, tubular end annular casing d open at thetop and bottoni; as shown this llll y suctional exhaustion of theoutward *passage of tioned below the float chamber. paratory to enteringthe cream chai'nber 9`9 of Fig. l. This milk induction tube al: extendsfrom the top or" the casing` down into the milk bowl. A modifiedconstruction of this casing and induction tube shown in Fig. Ll in whichthe easing /i/ is of a kidney like section and made with a ga p /t inwhich is integrally formed the milk induction tube 71,2.

In the bottom oit thelioat chamber 03 formed a central vides a low levelis depression 7 which prospace to etli'ect the linal milk 'from thefloat chamber and into the induction tube Z2 aforesaid.

lVithin the central tube g/ oi the milk bowl gli is 'formed a transverseor divisional wall or web g2 whose upper edge is immediately below theoutlet oit the induction milk tube as (Z2. The purpose of said wall g2is to prevent any slip oi the milk and to cause it to be initiallyaccelerated in speed as soon as it enters the bowl in order that anincreased volume of milk may be fed to the milk ports through which themilk is delivered to the bottom oit the bowl.

On the head of 'the bowl g1 or other suitable position is removably orintegrally secured a fan or other suctional device as m which acts asthe sectional agent for eX- hausting the air out of the chamber o'1within the float c and to therein establish and maintain a suilicientdegree cic vacnuir to cause the milk to rise within said cavity or airchamber and be fed into the inlet slot or port d1 in the upper milkinduction tube and which degree of vacuum and fesultant degree of -feedof milk to the bowl is in obedience with and ldetermined by the varyingspeeds or'. the separator.

This fan m also acts as an agent for gew era-ting a current oit air tocool and aerate the cream; said air current being directly fed to thefan through passages m2 posi- This air premay be cooled by waterevaporation or chemical means. Within and across the removable cover aof the cream spout a are secured. any number of baille plates n2 formedat their. opposite ends with gaps through which the cream passes and isthereby staggered in its travel towards vthe final exit.

The lower of these baille plates rest upon the bottom a4 or the spout.

The purpose of said baiiies n? is to staggei the cream in its movementand to compel it to flow oveil an extended areav or surface the betterto effect its cooling and aeration prior to its linal discharge.Sullcient air space exists above said battles for the tree vthe aircurrent.

As shown in Fig'. 6 instead ot' sais maj;v form Vthe* bottoml a* of thespout with upward corrugations p ba-iiies cream which partially entendacross the width o'f the spout and allow ol' the staggered passage ol'the cream in the resultant depressions 71. Jrs shown in Figs. l and T,surromnling the cream chamber and its spout is formed a water jacket rfed by a high level supply pipe as 'f1 to thereby create a circulationot cool water, said jacket having a high level discharge consisting` ol.:i tubular ccp fr litting in an upstandinji` .i'oot socket r to which aflexible pipe i" connects to carry away the heated water and also toempty the jacket when required.

0n the underside of the spout nl formed a divisional web or wall .epurpose tol canse the cooling water culate over a maximum area.

The cover n of the cream spout toi-mcd with a downwardlyextendingterminal .c in-order to provide means ior balllimz the creamspray issuing from the spout.

eferrinpto F 2 wherein is shown a structural n'iodiication to permit o1the Hout being used at one side oi the separator` an extension chamberas t, being provided.

In this view the float t1 is shown in its open position.

This float is made with centrally positioned orifices 2 which allow themilk to directli7 flow into the float clnimliicr and said lioat is madewith an npstandinpr tube 3 similar to cl already described in connection with the structure shown in Fini. l. ln operative combination withthe annular casinfir e is employed a removable thimblc or bell :i: whichmay be ma de ot `-@lass in order to enable Speed readings on the casinrrto be visible for indicating` the varying speeds of the separator. Thisbell a' encloses the casing' and its bottom edge m1 may be gapped asshown in Fig. 2.

Air inlet ports '1/ are formed in the cover of the cream chamber 71 forthe supply ot air to the lian v/2 tor the cooling and aeratin r ot thecream. i

lV ith cream separators whose positioned below the is whose to ci V-cream exit is exit if for the skimmed milk, ports .may be provided foradmit-- ting air it'or the cooling' ot the cream* said. ports lea-ding`to a position below thc skimmed milk discharge pan to prevent anysuction or escape of the skimmed milk into the cream chamber whichlatta-ir is also water jacketed.

These latter mentioned air admission ports convey air to additionalblades on the bowl and which air feed is in excess of that as suppliedto the :fans m or 1,12 'for the snctional feed of the milk.

It will be understood from the foregoing description that the improveddevice may be mounted on a cream separator of any suitable and wellknown type and may have the fan atta -hed to and driven by the rotatableseparator bowl. When the separator Sil lll() l (l fr lli) y es

` 2. ln a cream separator,`

ji ,assess is driven at a slowspeed, relatively little suction iscreated by `the ian and consequently the degree ot' air pr'essurereduction in chamber cL1 is small and very little milk will new throughopeningdl; It', however, y the separator `is driven at a higher rateoit` to secure by Letters Patent "is .1. ln a cream separator inycombination, a receptacle for un'separated milk, a separator bowl, adischarge passage 'for unseparated milk from said receptacle tovsaidlbowland a suction operated float valve for controlling the rateo'f flowoit unseparated `milk 'from said receptacle tosaidbowl."` 1" incombination, a receptacle for unseparated milk, a separa- `tor bowl, apassage for unseparated milk from said receptacle to said bowl andoperative a suction. producingmeans driven by saidseparator vbowl and afloat valve operated by said suction producing means for controllingtherate ot flow ot ui'iseparated milk from said receptacle tosaid bowl.`

3. ln a cream separator in combination, a receptacle for unseparatedmilk, a separator bowl and a suction controlled float valve lforfeeding,I unseparated milk from said receptacle to said bowl in ratio tothe speed ot said bowl. l

il. ln a separat-or in combination, a receptacle for unseparated.milk, aseparator bowl and asuction controlled float `valve mounted `on andoperated by` said separator bowl for feeding; unseparated milk from.said receptacle to said bowl lin ratio to the rotary speed of said bowl;

5. In` a cream` separator in. con'ibination,

`arreceptacle for unseparated milk, aseparator bowl, a` passage forunseparated milk :from said receptacle to said bowl and a suctioncontrolled "float valve ,tor controlling the rate oit `delivery of milk`:from said receptacle to said bowl according to the speed of thejbowl.1 y f 6. .ln a cream separator in combination, a

source oit supply ol unseparated milk1 a rcceptacle for unseparatedmilk, ineaiis'don maintaining a substantially constant liquid level insaid receptacle, a separator bowl, a

passage for unseparated milk from said receptacle to said bowl and asuction controlled ioat valve :for controlling the rate o-t delivery ofmilk from said receptacle to said bowl according to the speed oit" thebowl.

7. ln aci-'earn separator in combination,

a receptacle for 'miseparated milk, having chamber therein., a separatorbowka `discharge passage for unseparated inilk from saidchamber tosaid-bowl, an opening in within the chamber and inea-ns 'for varying uthe degree of said vacuum` according to the speed oisaidbowl: i

9. In a cream separator in combination, a

source oi supply of unseparated milk, a

'receptacle for unseparated milk, a `float and valve for maintaining `asubstantially coiii stant liquid level in said receptacle, a chainberwithin ,said receptacle and said float` a separator bowl, a dischargepassage 'for unsepara-ted` milk 'from said chamber to said bowl,anopening* in said discharge passage within said chamber and above thenormal liquid level therein and 'means for creating a` partial vacuumWithin said chamber" to raise said liquid level therein. y

1 0. ln a cream separator in combination, a source ot supply ofunseparated milk, a receptacle `for unseparated milk, a lioat and valvefor maintaining a substantially constant vliquid level in saidreceptacle having a chamber therein, alseparator bowl, a passage Jforunseparated milk from said chamber tosaid bowl, opening' in said passagewithin said chamber and yabove the normal liquid level therein,` meansfor creating-` a partialvacuum in saidl chamber to raise the.`

`liquid level `Elie-reinand means for varying the vacuum according tothe speed oifthe separator bowl. j

ll. 'ln acreain separator, means Yl'or aerating the cream dischargedtherefrom con'iprising a spout ttor said cream, means for creating adraft ofair in said spout and obstructions in `said spout for said creamwhereby the cream is agitatedandaerated..

12. ln a cream separator, means for aerating the cream dischargedtherefrom comprisingl asipo-uttor said "cream, means for creating a draft ot air in said spout and staggered balliesin said spout for saidcream whereby the latter has a prolonged Contact with the drait of air.`1 13. In a cream separator, in combination, means 'for controllingtherate of tlowbil unseparated milk to the separato-r bowl comi prisingaieeeptaole 'for unseparated milk, a chamberwithin said receptacle,`aiiinlet pas--l sage ttor unseparated milk to said chamber, a dischargepasjsafvs;e` for milk-trom saidchamber to said bowl, an opening in saidpassage within said chamber and above the normal liquid level therein,an exhaust tan mountec on and driven by said .bowl'and a passageconnecting said tanto said chamber' whereby said ian may create a.partial vacuum within said chamber.

la. In a cream separator, means :tor controlling the ratevoil How ofunseparated milk tothe separat-or bowl comprising a source of supply ofunsepa'rated milk, a receptacle for unseparated milk, a lioat within thereceptacle controlling said source of supply to maintain a substantiallyconstant liquid level within the receptacle, a chamber in said floatopen at itsbottom, a separator bowl, a discharge passage for unseparatedmilk from said chamber to said bowl, an opening in said passage withinthe chamber and above the normal liquid level therein, an exhaust fanmounted on and driven by said bowl and a passage connecting said fan tosaid chamber and above the maximum liquid level therein whereby said fanmay create a partial vacuum within said chamber.

' l5. In a cream separator in combination, a chamber for unseparatedmilk having an inlet passage fory milk at its lower end, al separatorbowl, a discharge passage for milk from said chamber to said bowl, anopening in said passage within the chamber and above thenormal liquidlevel therein, a. fan driven by said separator, said fan being conneetedat its intake side tothe chamber above the maximum liquid level therein,a cream spout, a skimmed milk spout and means for directing the exhaustfrom said fan through the vcream spout to aerate the cream.

16. In a cream separator in combination, a chamber for unseparated milkhaving an inlet passage for milk at its lower end, a separator bowl, adischarge passage for milk vfrom said chamber to said bowl, an openingin said passage withinl the chamber and above the normal liquidleveltherein, a ian drivenby said separator having an intake passageconnected to the chamber above the maximum liquid level therein, anauxiliary passage for air also connected to the intake side of said fan,a cream spout, a skimmed milk spout andv means for bringing the creaminsaid spout in contact with the exhaust romlsaid fan to aerate saidcream.

17. In a cream separator in combination, a source of supply ofunseparated milk, a receptacle for said milk, a float within saidreceptacle controlling said source tomaintain a substantially constant.liquid level within said receptacle, a chamber for said milk within saidreceptacle, an inlet passage for` said milk at the lower end oitl saidchamber, va separator bowl, `a discharge passage for -unseparated milkfrom said chamber to said bowl, an opening in said discharge passagewithin said chamber `and above the normal liquid level therein, a fandriven by the separator', a passage connecting the intake side ot saidian to the chamber und above the maximum liquid level therein, unauxiliary passage for air also connected to the intake side ot said lan,a skimmed milk spout, a cream spout and. means Vfor dircci ing theexhaust from said `tan through said cream spout to aerate the creamtherein.

18. 'In a cream separator in combination. a source ot' supply ofunseparated milk.y :i receptacle for said milk, a passage for milkbetween said source ol supply and said receptacle, a float within saidreceptacle controlling said passage to maintain a substan` tiallyconstant liquid level within said rcceptacle, a chamber l'or unsepuratcdmilk within said receptacle, an inkt passage tor .milk t'or saidchamber, a separator bowl. a discharge passage lor unseparalcd milkl'rom said chamber to said bowl, au olnining in Said discharge passagewithin the chambe and above the normal liquid level therein, an exhaustfan mounted on and driven by said separator bowl, a passage connor-,tingthe intake side ot said fan to said chamber above the maximum liquidlevel therein, an auxiliary passage ior air also connected to the intakeof said fan, a skimmed milk spout, a cream spout and means ilordirecting the exhaust ot said :fan through the cream spout to aerate thecream therein.

19. .ln combination with a cream scpara tor having a bowl, a reservoir,a lioat receptacle, a liquid passage from said reservoir to said floatreceptacle, a chambercd loat valve for controlling said passage locatedin said receptacle, an induction tube forming communication between saidchamber and bowl, a vtan located on said separator and rotatabletherewith, a passage communicating with the intakeside of said ilan andsaid chamber, an air passage between said intake side oi the i an andthe atmosphere, and :in outlet ifor cream trom said bowl incommunication with the outlet side of said fan.

20. A cream separator comprising a iceptacle, a. closed chamber in saidreceptacle, a passage rfor liquid from said rccelr'itaclc to the bottomoit said chamber, a bowl, a passage forming cormnunication between saidchamber and said bowl, a cream outlet passageway leading from said bowl,a second passage from said chamber having its intake end elevated abovesaid first named passage, and means in communication with said sec- 0ndnamed passage and said cream outlet for partially exhausting the air insaid chamber and aerating liquid in said cream outlet.

2l. A cream separator comprising a bowl, a receptacle having a chamberformed therein, a passage between the bottoms of said chamber andreceptacle, a tube extending above the bottom of said chamber and form`ing communication between said chamber and bowl, a; second passagehaving communicatlon Wlth sald Chamber above theto'f sind lrst namedpassing/e, e cream outlet from seid. "borylT/rd means communicating with5 selllglffgg/cond` named" 'passage and seid outlet 'or exhaustiugerfrom said chamber and et e 'the :same tune aeratng liquid in saidoutlet,

2L reservoir `in communication `with seid receptacle, and means forautomatleelly varylo ing the How of liquid from said reservoir Legame umto'sad chamber in proportion to the rate of' flow of the liquidtherefrom.

1u testimony whereof l have hereunto set my hand in presence of `twosubscribing wie` nesses.

WLLIAM GORDON CO'ICE.

` Witnesses:

RICHARD SPARROW, FRED I'LLAMBERT.

